Stand-Alone Operation
Crimson can operate without a USB connection too. Everything is fully
functional except for USB, MIDI and SPDIF in/out.
You can use Crimson as your studio preamplifer to monitor your audio sources
and to rehearse and play or sing along with the DAW.

iPad Recording
Crimson has built-in USB Class 2 drivers for hot-plugging and recording
with an iPad. Do note that the original Apple Camera Kit Adapter is required.